IKAnalyzer中文分词

IKAnalyzer中文分词


例子：

import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.List;

import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
import org.wltea.analyzer.lucene.IKAnalyzer;

public class IkAnalyzerTest {
	public static void main(String[] args) {
		// String keyWord =
		// "IKAnalyzer的分词效果到底怎么样呢，我们来看一下吧IKAnalyzer的分词效果到底怎么样呢，我们来看一下吧我们我们我们我们我们我们我们我们";
		String keyWord = "排骨猪肉的write,猪 牛,肉猪肉的,猪 牛,肉";
		// String keyWord = "";
		// 创建IKAnalyzer中文分词对象
		IKAnalyzer analyzer = new IKAnalyzer();
		// 使用智能分词
		analyzer.setUseSmart(true);
		// 打印分词结果
		try {
			printAnalysisResult(analyzer, keyWord);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 打印出给定分词器的分词结果
	 *
	 * @param analyzer分词器
	 * @param keyWord关键词
	 * @throws Exception
	 */
	private static String[] printAnalysisResult(Analyzer analyzer, String keyWord) throws Exception {
		System.out.println("[" + keyWord + "]分词效果如下");
		String logString = "GetKeyWordArray getKeyWordArray ";

		String[] returnMsgArray = null;
		String returnMsgTemp = "";

		TokenStream tokenStream = analyzer.tokenStream("content", new StringReader(keyWord));
		tokenStream.addAttribute(CharTermAttribute.class);
		try {
			while (tokenStream.incrementToken()) {
				CharTermAttribute charTermAttribute = tokenStream.getAttribute(CharTermAttribute.class);
				if (charTermAttribute != null) {
					System.out.println(logString + "charTermAttribute  ====== " + charTermAttribute.toString());

					if (charTermAttribute.toString() != null) {
						returnMsgTemp += charTermAttribute.toString();
						returnMsgTemp += ",";
					} else {
						System.out.println(logString + "charTermAttribute.toString() is null");
					}
				} else {
					System.out.println(logString + "charTermAttribute is null");
				}

			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		System.out.println(logString + "returnMsgTemp == " + returnMsgTemp);
		returnMsgArray = returnMsgTemp.split(",");
		if (returnMsgArray == null) {
			System.out.println(logString + "returnMsgArray is null");
			return null;
		}

		System.out.println(logString + "returnMsgArray len == " + returnMsgArray.length);

		// 去掉数组中重复元素
		List<String> list = new ArrayList<String>();
		for (int i = 0; i < returnMsgArray.length; i++) {
			if (!list.contains(returnMsgArray[i])) {// 如果数组 list不包含当前项，则增加该项到数组中
				if (returnMsgArray[i].equals("")) {
					System.out.println(logString + "returnMsgArray[" + i + "].equals(\"\")");
					continue;
				}
				list.add(returnMsgArray[i]);
			}
		}

		String[] newStr = list.toArray(new String[1]);
		if (newStr == null) {
			System.out.println(logString + "newStr is null");
			return null;
		}

		returnMsgTemp = "";
		System.out.println(logString + "newStr.length ==" + newStr.length);
		for (int i = 0; i < newStr.length; i++) {
			if (newStr[i] == null) {
				System.out.println(logString + "newStr[" + i + "] is null");
			}
			returnMsgTemp = returnMsgTemp + "[" + newStr[i] + "]";
		}
		System.out.println(logString + "returnMsgArray ==" + returnMsgTemp);
		System.out.println(logString + "newStr ==" + newStr.toString());
		return newStr;
	}
}

jar包下载:附件